Bug 2571382 (CVE-2026-40669) - CVE-2026-40669 sev: sev: Loss of guest memory integrity via off-by-one error
Summary: CVE-2026-40669 sev: sev: Loss of guest memory integrity via off-by-one error
Keywords:
Status: NEW
Alias: CVE-2026-40669
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-11-10 22:22 UTC by OSIDB Bzimport
Modified: 2026-11-11 02:12 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-11-10 22:22:24 UTC 
An off-by-one error in AMD Secure Encrypted Virtualization (SEV) firmware could allow an attacker with hypervisor access to corrupt the Reverse Map Table (RMP) table, potentially resulting in loss of guest memory integrity.
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